Ring spinning apparatus



Feb. 28, 1950 J, DUFOND 2,499,342

RING SPINNING APPARATUS Filed Aug. 7, 1947 mama an. as, ieso oFnc RING SPINNING APPARATUS Edmond B. J. Dufond, Sno Paulo,

Application August 7, 1947, Serial No. 161.105 InBrazilJune 17,1941 v '1 Claims. (Cl. 57-124) 1 "It is an object of this invention to provide improved-apparatus for ring spinning yarns and particularly to provide such apparatus so arranged as to have minimum wear of parts maximum acceleration in starting up and which will be capable of handling every possible condition from maximum ballooning to maximum stretch. The above and other. objects will be made clear from the following detailed description taken in connection with the annexed drawing in which Fig. 1 is a vertical cross section of the apparatus as a whole, and

Fig. 2 is a section on the line 2-2 of Fig. 1. In the prior art when a spindle or bobbin has been run on a ring spinning machine the traveller has had a simple mechanical'bearing on a fixed portion of the machine. There has been a length of thread or yarn extending radially between the traveller and the bobbin and under a combination of centrifugal force and the sheer drag of the yarn, the traveller has been impelled to rotate with the spindle; This has presented difflculties in starting up, and has also made the weight or mass of the traveller a critical element in the performance of the apparatus as a whole. The present invention uses the rotation of the spindle or bobbin itself to apply accelerative force to the traveller so that no longer is dependence placed on the yarn alone. This arrangement largely negatives the effect on the spinning process of the weight or mass of the traveller which, in the case of this invention, for all practical purposes has zero mass. With this has been combined means for adjustably retarding the rate of rotation of the traveller, whereby providing, in eiTect, adjustable mass or weight.

In Fig. 1 there is shown a hollow casting i6, having a flange l2 secured to any fixed part of the machine frame l4 by means of bolts l6. Mounted on each end of the casting III are ballbearings. l8 in which is mounted a sleeve 26 held against axial shifting by a sleeve22. The upper end of the sleeve 261s a flange 24 and extending upwardly from the periphery of the flange 24 is rotary movement by means of the splines 30 and is given vertical movement by any suitable mechanism 33 connected to the lower end 34 of the shaft 32. A spindle orbobbin 36 is mounted at the upper end of the shaft 32.

Brazil Surrounding the upper end of the annulus 26 is a flange 36 defining an annular channel 46 which is partly filled with water, oil, glycerin,

mercury or any other suitable liquid. The travelguide 50 may be provided, optionally, to control the ballooning of the yarn 46.

, An adjustable brake designated generally as 62 and best shown in Fig. 2 is provided to :make contact with the traveller 42. This brake comprises opposed shoes 54 pivoted on vfixed pivots 56 and having spring arms 58 connected to a threaded rod 60 to adjust the pressure of the shoes 64. The adjustment is made'by means of a hand wheel 62.

Depending on the viscosity of the liquid in the channel 40 rotation of the channel will tend to drive the traveller 42 but there is ample slip in such drive to bring about a winding action of the yarn 46 on the spindle 36 and the amount of slip, hence the stretch and ballooning may be controlled by adjustment of the shoes 54.

When it is desired to use the principles of this invention in apparatus having its axis of rotation other than vertical, a ball bearing, or other antifriction bearing, may be substituted for the fluid 44 and the fluid channel 40.

While there has been described in detail one specific embodiment ofthis invention, it is obvious that it can be givennumerous mechanical forms. It is not, therefore, to be limited by the details herein disclosed, but only as set forth in sub-joined claims which are to be broadly construed.

I claim:

1. In ring spinning apparatus a spindle and means for rotating said spindle, a traveller, surrounding said spindle, means for producing relative reciprocating movement between said traveller and said spindle, driving means for rotating said traveller, and an anti-friction bearing supported by said driving means and supporting said traveler, said traveler receiving only so much energy from saidv driving means as is transmitted by and through said anti-friction bearing.

2.- A device as set forth in claim 1 including adjustable means for retarding the rotation of the traveller.

member connected to said spindle for rotation cylindrical member mounted upon said support for rotation thereon and having an upwardly open, annular cup adjacent one-end thereof, means for driving said member, a spindle passing axially through said member and having a splined connection therewith, a body of liquid in said cup, a traveller ring surrounding said spindle and having a portion buoyantly supported by said liquid, and a brake mechanism engaging said ring to limit the speed thereof.

6. In ring spinning apparatus a spindle and means for rotating said spindle, a traveler sur rounding said spindle, means for producing relative reciprocating movement between said traveller and spindle; an anti-friction bearing supported by said spindle rotating means and supporting said traveler, said traveler being driven by said spindle rotating means through said anti-friction bearing and receiving only so much energy from said rotating means as is transmitted by and through said bearing.

7. A device as set forth in claim 6 including adjustable means for retarding the rotation of the traveler.

EDMOND R. J. DUFOND.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date Thorp Nov. 20, 1828 1,009,602 Thomson Nov. 21, 1911 2,142,111 Camp Jan. 3, 1939 

